Space Suit Survival Time Calculator

Estimate how long life-support resources in a space suit could last based on oxygen, cooling, and battery limits.

Primary breathable oxygen duration.
Thermal control may fail before oxygen runs out.
Power for suit systems and communications.
Hard work increases oxygen and cooling demand.
Adds a small safety margin if available.
Choose how to display the main result.
How we calculate

We adjust oxygen and cooling limits by activity level, optionally add a small emergency reserve, and use the shortest remaining time as the overall limit.